Another in my efforts create semi-sentient creatures with a shaman variant: Arcandidae.Arcandidae are locust-like bugs with near sentience. Individuals have some cold affinity, but in swarms they have magical, instinctive dances that allow the swarm to cast powerful frost magics. They shed their chilly exoskeletons from time to time and they can be harvested and used in various concoctions. They lay eggs in the soil and, though hard to gather, they are also rumored to have powerful properties.

Swarm. The swarm can occupy another creature’s space and vice versa, and the swarm can move through any opening large enough for a Tiny Arcandidae. The swarm can’t regain hit points or gain temporary hit points.Innate Spellcasting. The swarm’s innate spell spellcasting ability is Wisdom (spell save DC 13). The swarm can innately cast the following spells, requiring no components: